Cita APA

McCONNEL, C. R., & BRUCE, S. L. (1990). Economics; principles, problem,and policies.-- Ed.11. McGraw-Hill.

Citación estilo Chicago

McCONNEL, Campbell R., and Stanley L. BRUCE. Economics; Principles, Problem,and Policies.-- Ed.11. New York: McGraw-Hill, 1990.

Cita MLA

McCONNEL, Campbell R., and Stanley L. BRUCE. Economics; Principles, Problem,and Policies.-- Ed.11. McGraw-Hill, 1990.